Glossary

MagSafe

Apple's magnetic wireless-charging system for iPhone. Aligns coils for higher efficiency and supports 15 W charging. The Qi2 standard adopts the same magnet ring for cross-brand compatibility.

MagSafe on iPhone uses an array of magnets to snap a charger or accessory into perfect alignment with the inductive coil — solving wireless charging's biggest practical issue (misaligned coils waste energy as heat).

Power

MagSafe charger (1st-gen iPhone-only) — 15 W.
MagSafe on iPhone 12+ — 15 W to iPhone; 5 W to other Qi devices.
MagSafe on iPhone 17 Pro / 18 series — up to 25 W with PD 3.1 source.

Qi2

Qi2 is the standardized version of MagSafe — same magnet ring, royalty-free. Most premium Android phones launched 2024+ support it. Practically, MagSafe accessories work on Qi2 phones and vice-versa.

Accessories

The magnet ring carries a torque-resistant load, enabling wallets, stands, car mounts, and battery packs that snap on without a case.

Where this matters

Categories that use magsafe

Smartphones

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